摘要:
Intermediates and processes are disclosed which are useful for the preparation of a substantially pure compound of the formula: ##STR1## wherein R.sub.6 and R.sub.7 are each hydrogen or R.sub.6 and R.sub.7 are independently selected from ##STR2## wherein R.sub.a and R.sub.b are independently selected from hydrogen, loweralkyl and phenyl and R.sub.c, R.sub.d and R.sub.e are independently selected from hydrogen, loweralkyl, trifluoromethyl, alkoxy, halo and phenyl; and ##STR3## wherein the naphthyl ring is unsubstituted or substituted with one, two or three substitutents independently selected from loweralkyl, trifluoromethyl, alkoxy and halo; orR.sub.6 is as defined above and R.sub.7 is R.sub.7a OC(O)--wherein R.sub.7a is loweralkyl or benzyl; orR.sub.6 and R.sub.7 taken together with the nitrogen atom to which they are bonded are ##STR4## wherein R.sub.f, R.sub.g, R.sub.h and R.sub.i are independently selected from hydrogen, loweralkyl, alkoxy, halogen and trifluoromethyl and R.sub.8 is hydrogen or --C(O)R" wherein R" is loweralkyl, alkoxy, benzyloxy or phenyl wherein the phenyl ring is unsubstituted or substituted with one, two or three substituents independently selected from loweralkyl, trifluoromethyl, alkoxy and halo; or an acid addition salt thereof.
摘要:
The invention relates to a process for preparing quinoline-substituted carbonate and carbamate compounds, which are important intermediates in the synthesis of 6-O-substituted macrolide antibiotics. The process employs metal-catalyzed coupling reactions to provide a carbonate or carbamate of formula (I) or (II) or a substrate that can be reduced to obtain the same.
摘要:
A multiprocessing system utilizes a bus protocol having two response windows. The first response window is at a fixed latency from the transmission of a bus request and/or address, while the second response window, utilized for coherency reporting, is placed a configurable number of clock cycles after the bus request and address to allow for longer access, or snoop, times to perform a cache directory look-up within other bus devices. The first response window reports error or flow control and error status. Furthermore, a method had been described, which implements the reporting of response information in a flexible and high performance manner.
摘要:
A fiber optic cable has one end directly coupled to a semiconductor IR generating laser diode array and the other end is used to direct IR radiation at a soldier's wound for surgical purposes. The beam may also be used to illuminate a dark scene to detect the presence of a present threat such as a sniper. The components are conveniently carried by the medically trained person in his belt pack so as not to interfere with his freedom of movement. Disposable IR applicator tips may also be provided to be attached to the IR exit portion of the fiber optic cable.
摘要:
Intermediates and processes are disclosed which are useful for the preparation of a substantially pure compound of the formula: ##STR1## wherein R.sub.6 and R.sub.7 are each hydrogen or R.sub.6 and R.sub.7 are independently selected from ##STR2## wherein R.sub.a and R.sub.b are independently selected from hydrogen, loweralkyl and phenyl and R.sub.c, R.sub.d and R.sub.e are independently selected from hydrogen, loweralkyl, trifluoromethyl, alkoxy, halo and phenyl; and ##STR3## wherein the naphthyl ring is unsubstituted or substituted with one, two or three substitutents independently selected from loweralkyl, trifluoromethyl, alkoxy and halo; orR.sub.6 is as defined above and R.sub.7 is R.sub.7a OC(O)-- wherein R.sub.7a is loweralkyl or benzyl; orR.sub.6 and R.sub.7 taken together with the nitrogen atom to which they are bonded are ##STR4## wherein R.sub.f, R.sub.g, R.sub.h and R.sub.i are independently selected from hydrogen, loweralkyl, alkoxy, halogen and trifluoromethyl and R.sub.8 is hydrogen or --C(O)R" wherein R" is loweralkyl, alkoxy, benzyloxy or phenyl wherein the phenyl ring is unsubstituted or substituted with one, two or three substituents independently selected from loweralkyl, trifluoromethyl, alkoxy and halo; or an acid addition salt thereof.
摘要:
A method of providing near simultaneous night vision and communication including directing a narrow voice modulated IR laser beam at a distant receiver/demodulator during communication periods, causing the IR laser beam to diverge substantially during scene viewing periods, other than the data communication periods, for illuminating a darkened scene which includes the laser beam receiver, and viewing the darkened scene with an IR viewing device.
摘要:
A memory system and a method for operating a memory system are provided. The memory system includes a set of memory banks, logic for calculating a first address in each memory bank from the set of memory banks and a controller receiving a transfer address from a computing device. The controller includes logic for selecting a memory bank from the set of memory banks based on the transfer address and the first addresses of the memory banks, and for mapping the transfer address to a target address in the selected memory bank based on a first address in the selected memory bank. As a result, the set of memory banks has a contiguous memory space.
摘要:
Methods and apparatus are provided for supplying data to a processor in a digital processing system. The method includes holding data required by the processor in a cache memory, supplying data from the cache memory to the processor in response to processor requests, performing a cache line fill operation in response to a chache miss, supplying data from a prefetch buffer to the cache memory in response to the cache line fill operation, and speculatively loading data from a lower level memory to the prefetch buffer in response to the cache line fill operation.
摘要:
A note stacker for a currency validator includes a stationary punch and movable rails having slots therein adapted for receiving the currency tendered thereto. The stationary punch comprises a top plate surface of the housing maintaining drive motors and gears of the stacker itself. The top plate is curved to accommodate the natural deflection of the bill as it is being stacked, and is provided with a durable frictional material along lateral edges thereof to prevent the bill from sliding or otherwise moving upon the surface of the curved plate. A leading edge of the curved plate is provided with serrations or teeth which, in conjunction with a shutter fixed to the movable rails, serves to defeat strings or other retrieval elements.